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Title in Portuguese: Braess paradox at the mesoscopic scale
Author: Sousa, Ariel Adorno de
Chaves, Andrey
Farias, Gil de Aquino
Peeters, Francois Maria Leopold
Keywords: Mesoscopic phenomena (Physics)
Issue Date: 2013
Publisher: Physical Review B
Citation: SOUSA, Ariel Adorno de; CHAVES, Andrey; FARIAS, Gil de Aquino; PEETERS, François M. Braess paradox at the mesoscopic scale. PHYSICAL REVIEW B, v. 88, n. 24, p. 1-6, 2013.
Abstract: We theoretically demonstrate that the transport inefficiency recently found experimentally for branched-out mesoscopic networks can also be observed in a quantum ring of finite width with an attached central horizontal branch. This is done by investigating the time evolution of an electron wave packet in such a system. Our numerical results show that the conductivity of the ring does not necessary improve if one adds an extra channel. This ensures that there exists a quantum analog of the Braess paradox, originating from quantum scattering and interference.
metadata.dc.type: Artigo de Periódico
ISSN: 1098-0121
Appears in Collections:DFI - Artigos publicados em revista científica

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